Continuity mistake: When Nestor is Count X, Irma gives him a very-red lipsticked kiss on his right cheek. But, later, in the cafe, the redness has reduced a lot, then gets redder again, and then less, then more.

Continuity mistake: In Irma's apartment, the windows are covered with newspapers, to block out prying eyes. From the apartment's view, the newspapers don't cover the lower third, but from the street view, the lower third is covered.